%0 Journal Article %A S. D. Ăˆidel'man %A T. G. Pletneva %T Positive solutions of parabolic systems and their integral representations %J Doklady Akademii Nauk %D 1973 %P 787-790 %V 208 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_208_4_a8/ %G ru %F DAN_1973_208_4_a8